Scouring sponge



FIG. 1 is a color photograph showing a perspective view of the new design for a scouring sponge;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a front view thereof, the back side view being the same; and

FIG. 5 is a right side view thereof, the left side view being the same.

FIG. 6 is a color photograph showing a perspective view of a second embodiment of the new design for a scouring sponge;

FIG. 7 is a top view thereof;

FIG. 8 is a bottom view thereof;

FIG. 9 is a front view thereof, the back side view being the same; and,

FIG. 10 is a right side view thereof, the left side view being the same. 

CLAIM The ornamental design for a scouring sponge, as shown and described. 